Ceres’ Mysterious Bright Spots Explained

The U.S. space agency NASA says it has uncovered some “well-kept secrets” behind the mysterious bright spots on the dwarf planet Ceres. Ceres, which orbits the sun between Mars and Jupiter, has more than 130 bright spots, most located near impact craters. Using data from NASA’s Dawn spacecraft, scientists believe they are caused by “a kind of salt.” The spots, researchers say, were likely caused when asteroids unearthed a mixture of ice and salt. "The global nature of...

© La Voix de l'Amérique - jeudi 10 décembre 2015